Iodine Disinfection of Water

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Abstract
Until recently disinfection of water with iodine was limited largely to emergency situations. This halogen is now being used with increasing frequency as a disinfectant for swimming pools. Observations on 22 individuals using an iodinated pool for one month revealed that they did not absorb sufficient iodide to modify either the radioactive iodine (RAI) uptakes or serum concentrations of protein-bound iodine (PBI). A five-year feasibility study of the use of iodine for disinfection of a community water supply has been conducted. Effective bacteriological control was obtained using 1 mg of iodine per liter of water. Assessment of thyroid function of representative users of this water supply revealed the expected decrease in thyroidal uptake of iodine 131 (I131) with no change in serum thyroxine values.